Viscosity is a material property which describes the resistance of a fluid to shearing flows. It corresponds roughly to the intuitive notion of a fluid's 'thickness'. For instance, honey has a much higher viscosity than water. Viscosity is measured using a viscometer. Measured values span several orders of magnitude.
Viscosity profiles across a range of shear rates. We can clearly see the zero-shear viscosity plateaus. Performing viscosity testing under very low shear conditions also enables the measurement of zero-shear viscosity. Zero-shear viscosity is a plateau value obtained at very low shear. Far below the range typically attainable with a viscometer. Questions tagged [oil-viscosity] Ask Question The viscosity of oil is the measure of its resistance to flow. Learn more… Top users; Synonyms; 11 questions Start studying Chapter 19 Questions. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. -As viscosity increased, the flow Learn viscosity with free interactive flashcards. Choose from 488 different sets of viscosity flashcards on Quizlet.
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In the SI system, viscosity is expressed in kg m-1 s-1; however, sometimes viscosity values are shown in terms of the equivalent units of N m-2 s or Pa s, where the Pascal (Pa) is the SI unit of pressure and is equal to 1 Newton per square meter (Table A-1). The SI unit of viscosity is equal to 10 Poise or 1000 centipoise.
viscosity | Definition, Facts, & Examples | Britannica Viscosity, resistance of a fluid (liquid or gas) to a change in shape, or movement of neighbouring portions relative to one another. Viscosity denotes opposition to flow. The reciprocal of the viscosity is called the fluidity, a measure of the ease of flow. Molasses, for example, has a greater viscosity than water. Chapter 3: Multiple choice questions - Oxford University Press If 25 g of a liquid occupies 20 cm3 in a measuring cylinder, what is the density of the liquid? a) 0.25 … 12.4 Viscosity and Laminar Flow; Poiseuille’s Law